SBC Fuel Pump Block Off

The Holley SBC Fuel Pump Block Off (part number 12-814) is a steel, chrome-finished fuel pump blockoff plate engineered specifically for small-block Chevy V8 applications. This component serves a critical function in engine modifications where the mechanical fuel pump is being replaced with an electric system or eliminated entirely, sealing the factory fuel pump location to prevent vacuum leaks and maintain proper engine breathing.

Constructed from steel and finished in polished chrome, the blockoff plate resists corrosion while maintaining a professional appearance in engine bays where the pump location is visible. At 0.29 lbs with compact dimensions (5 x 0.75 x 7 inches), it installs directly where the factory pump mounts, requiring only standard fasteners. The chrome finish ensures durability across temperature cycles and exposure to fuel vapors common in high-performance applications, while the steel construction provides the rigidity necessary for a secure, leak-free seal at the mounting surface.

This blockoff is essential for builders converting to electric fuel pump systems, eliminating carbureted fuel systems, or adapting fuel injection to older small-block platforms. Holley's blockoff design fits the standard small-block Chevy fuel pump bore without modification, making it a direct-fit solution for engine swaps and restorations where factory pump locations must be sealed. Serious engine builders and street rod enthusiasts rely on quality blockoffs to prevent air leaks that compromise idle quality and fuel system pressure stability.